@import "tailwindcss";

:root {
  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  /* Use normal document flow so content can grow and the page can scroll.
     Previously display:flex with centered items prevented the main app
     from expanding and caused scrolling issues. */
  min-width: 320px;
  min-height: 100vh;
  /* Ensure page background matches app background (light neutral) so
     any extended area uses the same color rather than the old dark root. */
  background-color: #f3f4f6; /* Tailwind gray-100 */
  color: #111827; /* Tailwind gray-900 for readable text */
}

/* Upload area scrollbar gutter: reserve space so scrollbar appears inset and
   not overlapping content; provides a slightly right-shifted scrollbar. */
.upload-scrollbar {
  scrollbar-gutter: stable;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  /* Default buttons should be dark background with white text to ensure
    good contrast when components don't supply explicit styles. Component
    classes like btnPrimary/btnSecondary still override these defaults. */
  background-color: #111827; /* Tailwind gray-900 */
  color: #ffffff;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}
